发明名称 |
User navigation device with a code wheel and an encoder |
摘要 |
A user navigational apparatus. The user navigational apparatus includes a code wheel and an encoder. The code wheel is coupled to a dial. The code wheel includes a track of alternating reflective and non-reflective sections. The optical reflective encoder includes an emitter and a detector. The emitter generates a light signal incident on the track of the code wheel. The detector detects a reflected light signal. The reflected light signal corresponds to a portion of the incident light signal that is reflected off of the reflective sections of the track. The detector also generates a channel signal corresponding to the reflected light signal. Embodiments of this type of user navigational apparatus achieve reduced thickness compared to conventional implementations of jog wheels.
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申请公布号 |
US7732756(B2) |
申请公布日期 |
2010.06.08 |
申请号 |
US20060591799 |
申请日期 |
2006.11.01 |
申请人 |
AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD. |
发明人 |
LUM CHEE FOO;WONG WENG FEI;FOO SIANG LEONG |
分类号 |
H01J40/14;G09G5/00 |
主分类号 |
H01J40/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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